SERVICING
63
Air Handler Display (B*)
LED Display
Description of System Status
Idl
Idle
FAn
Constant Fan
AC
Compressor Cooling, Single-Stage (non-comm units)
1AC
Compressor Cooling, Low Stage (non-comm units)
2aC
Compressor Cooling, High Stage (non-comm units)
AC1
Compressor Cooling, Low Stage (comm units)
AC2
Compressor Cooling, High Stage (comm units)
HP
Compressor Heat, Single Stage (non-comm units)
1AC
Compressor Heat, Low Stage (non-comm units)
2AC
Compressor Heat, High Stage (non-comm units)
HP1
Compressor Heat, Low Stage (comm Units)
HP2
Compressor Heat, High Stage (comm Units)
Ht
Electric Heat, Single Stage
Ht1
Electric Heat, Single Stage
Ht2
Electric Heat, High Stage
*
dft
Defrost, Single Stage Electric Heat (non-comm units)
df1
Defrost, Low Stage Electric Heat
df2
Defrost, High Stage Electric Heat
dHU
Dehumidification
*If a system is a heat pump connected legacy, then a DFT will show on the board in 2 instances.
1. If the heat pump calls for a defrost, Y and a W will be energized resulting in a DFT code on the air handler display.
2. If the heat pump calls for auxiliary heat, Y and a W will be energized resulting in a DFT code on the air handler
display.
Summary of Contents for ASXC16
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